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Finding the Fourth Proportional to 162,568.15, 243,721 and 149,446.15

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Solution

The fourth proportional to 162,568.15, 243,721 and 149,446.15 is: 224,048.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,568.15 : 243,721 = 149,446.15 : x
  2. Step 2: Convert to fraction form
    162,568.15/243,721 = 149,446.15/x
  3. Step 3: Cross multiply
    162,568.15x = 243,721 × 149,446.15
  4. Step 4: Simplify right side
    162,568.15x = 36,423,165,124.15
  5. Step 5: Solve for x
    x = 36,423,165,124.15/162,568.15
  6. Step 6: Final answer
    x = 224,048.59

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.